Cell towers in Northbrook, Illinois
The FCC register lists 17 antenna structures in and around Northbrook. That is the 41st highest count of any place in Illinois.
Overview
The FCC register lists 17 antenna structures in and around Northbrook, IL. That is the 41st highest count of any place in Illinois.
Density works out to 1.28 registered structures per square mile of land area.
The median registered structure here stands 36 m (117 ft); the tallest reaches 80 m (261 ft).
The largest registered owner here is Crown Castle Gt Company, LLC, which holds 4 of them — 23.5% of the local total. Owner is not the same as carrier: tower companies lease space on their structures to several networks at once.
Registrations here span 1983 to 2016.
Structure types
| Tower | 7 | 41% |
| Pole | 5 | 29% |
| Lattice tower | 2 | 12% |
| Not specified | 1 | 6% |
| Monopole | 1 | 6% |
| Building with tower | 1 | 6% |
Largest registered owners
owner is not the same as carrier| Crown Castle Gt Company, LLC Tower company | 4 | 24% |
| Stc Two LLC Tower company | 2 | 12% |
| American Towers LLC Tower company | 2 | 12% |
| Illinois Bell Telephone Company Other | 1 | 6% |
| Chicago Smsa LP Carrier | 1 | 6% |
Tallest registered structures
| Height | Type | Built | Owner | ASR |
|---|---|---|---|---|
| 80 m (261 ft) | Tower | 2010 | Octagon Towers, LLC | 113912 |
| 55 m (179 ft) | Tower | 1983 | Crown Castle Gt Company, LLC | 113022 |
| 53 m (174 ft) | Lattice tower | 1984 | American Towers LLC | 113736 |
| 51 m (166 ft) | Lattice tower | 1995 | American Towers LLC | 106440 |
| 49 m (160 ft) | Building with tower | 2010 | Illinois Bell Telephone Company | 2614262 |
| 41 m (134 ft) | Tower | 1999 | Ccatt LLC | 620449 |
| 40 m (130 ft) | Tower | 1999 | Sba Properties, LLC | 1098474 |
| 38 m (125 ft) | Pole | 2003 | T-mobile USA Tower LLC | 2616853 |
| 36 m (117 ft) | Tower | 1985 | Crown Castle Gt Company, LLC | 113028 |
| 36 m (117 ft) | Pole | 1987 | Crown Castle Gt Company, LLC | 113029 |
| 35 m (115 ft) | Not specified | 1996 | Array Digital Infrastructure, INC. | 114760 |
| 33 m (109 ft) | Tower | 1994 | Crown Castle Gt Company, LLC | 113031 |
| 33 m (107 ft) | Monopole | 2016 | Towerco IV LLC | 2688560 |
| 33 m (107 ft) | Tower | 2000 | Stc Two LLC | 2614675 |
| 32 m (104 ft) | Pole | 1993 | Chicago Smsa LP | 113030 |
| 27 m (90 ft) | Pole | 1998 | Stc Two LLC | 103552 |
| 22 m (73 ft) | Pole | 1993 | Sbc Tower Holdings LLC | 113703 |
When they were registered
| 1980s | 4 | 24% |
| 1990s | 8 | 47% |
| 2000s | 2 | 12% |
| 2010s | 3 | 18% |
Nearby places
- Glenview 10
- Wheeling 17
- Prospect Heights 7
- Mount Prospect 8
- Buffalo Grove 13
About this data
These counts come from the FCC Antenna Structure Registration database, weekly file dated 2026-08-23. Registration is generally required above 200 feet or near an airport, so small cells, rooftop antennas and short masts do not appear.
The FCC Antenna Structure Registration database covers structures that require registration — generally those over 200 feet or near airports. Many small cells, rooftop antennas and short towers are not registered and will not appear here.
"Owner" is the entity that registered the structure, usually a tower company such as American Tower or Crown Castle. It does not indicate which carriers operate equipment on the structure.